Testo Leak Detector 316-3

The Testo 316-3 Refrigerant Leak Detector is a reliable handheld leak detector designed for fast and accurate leak detection across air conditioning, refrigeration and heat pump systems. Built for professional HVAC-R technicians, it uses a heated diode sensor to detect common refrigerants and modern refrigerant blends with strong sensitivity and dependable field performance.

With simple one-button operation, automatic zeroing, visual LED indication and an audible alarm, the Testo 316-3 helps technicians quickly locate refrigerant leaks even in previously contaminated areas. It is suitable for common refrigerants including R22, R134a, R404A, R410A, R507 and R438A, as well as CFC, HFC and HCFC refrigerants. The current Testo listing also notes the 316-3 as A2L compliant.

Key Features

• Refrigerant leak detector for HVAC-R service work
• Heated diode sensor for strong refrigerant sensitivity
• Detects common CFC, HFC and HCFC refrigerants
• Suitable for modern refrigerant blends including R410A, R407C and R134a
• A2L compliant according to Testo
• Sensitivity down to 0.15 oz/year
• High / low sensitivity adjustment for easier leak pinpointing
• Automatic zeroing helps compensate for background refrigerant
• Visual LED leak indication
• Audible alarm for clear leak detection feedback
• Simple one-button operation
• Rugged housing for field service use
• Replaceable sensor head and filter

Specifications

Kit Includes

• 1 × Testo 316-3 refrigerant leak detector
• 1 × Sensor head
• 1 × Transport case
• 1 × Calibration certificate
• Batteries
• Filters

Applications

• Refrigerant leak detection
• Air conditioning service work
• Refrigeration system maintenance
• Heat pump fault finding
• CFC, HFC and HCFC refrigerant systems
• R410A, R407C, R134a and common blend refrigerants
• Residential and commercial HVAC-R servicing

The Testo 316-3 gives HVAC-R technicians a simple, rugged and sensitive leak detection solution for everyday refrigeration and air conditioning service work. With heated diode technology, automatic zeroing and clear visual/audio alarms, it is a practical detector for fast refrigerant leak location on site.